#ifndef _UAPI__LINUX_BPF_COMMON_H__
#define _UAPI__LINUX_BPF_COMMON_H__

/* Instruction classes */
#define BPF_CLASS(code) ((code) & 0x07)
#define   BPF_LD    0x00
#define   BPF_LDX   0x01
#define   BPF_ST    0x02
#define   BPF_STX   0x03
#define   BPF_ALU   0x04
#define   BPF_JMP   0x05
#define   BPF_RET   0x06
#define   BPF_MISC        0x07

/* ld/ldx fields */
#define BPF_SIZE(code)  ((code) & 0x18)
#define   BPF_W   0x00 /* 32-bit */
#define   BPF_H   0x08 /* 16-bit */
#define   BPF_B   0x10 /*  8-bit */
/* eBPF   BPF_DW    0x18    64-bit */
#define BPF_MODE(code)  ((code) & 0xe0)
#define   BPF_IMM   0x00
#define   BPF_ABS   0x20
#define   BPF_IND   0x40
#define   BPF_MEM   0x60
#define   BPF_LEN   0x80
#define   BPF_MSH   0xa0

/* alu/jmp fields */
#define BPF_OP(code)    ((code) & 0xf0)
#define   BPF_ADD   0x00
#define   BPF_SUB   0x10
#define   BPF_MUL   0x20
#define   BPF_DIV   0x30
#define   BPF_OR    0x40
#define   BPF_AND   0x50
#define   BPF_LSH   0x60
#define   BPF_RSH   0x70
#define   BPF_NEG   0x80
#define   BPF_MOD   0x90
#define   BPF_XOR   0xa0

#define   BPF_JA    0x00
#define   BPF_JEQ   0x10
#define   BPF_JGT   0x20
#define   BPF_JGE   0x30
#define   BPF_JSET        0x40
#define BPF_SRC(code)   ((code) & 0x08)
#define   BPF_K   0x00
#define   BPF_X   0x08

#ifndef BPF_MAXINSNS
#define BPF_MAXINSNS 4096
#endif

#endif /* _UAPI__LINUX_BPF_COMMON_H__ */
